论文标题
碰撞积分,强磁场和准粒子描述对热QCD培养基中电荷和热传输的累积影响
Cumulative effects of collision integral, strong magnetic field, and quasiparticle description on charge and heat transport in thermal QCD medium
论文作者
论文摘要
我们的第一个目的是探索碰撞积分与瞬时保护粒子数量的保险对热QCD培养基中电荷和热传输的效果。第二个目的是查看由于强磁场(b)引起的尺寸降低如何通过纠缠效应(例如}碰撞时间和占用概率等调节碰撞积分中的传输。最终目的是检查强B中热QCD的分散性关系的准粒子描述如何改变上述结论。我们观察到,与放松式术语相比,我们观察到修改后的碰撞术语加快了传输,这是由大量电气($σ_{\ rm el} $)和热($κ$)电导率的大幅度所表现出来的。作为推论,洛伦兹的数字由后来的主导,而Knudsen的数字是前者的。但是,强B不仅会在热传输中翻转碰撞期限的优势,还会导致$σ_ {\ rm el} $和$κ$的巨大增强,并减少特定热量。结果,平衡因子,诺德森的数量比一个数字大得多,这违反了物理解释。 Finally, quasiparticle description in the absence of strong B impedes the transport of charge and heat, resulting in the meagre decrease of conductivities, however, strong B does noticeable observations: conductivities now gets reduced to physically plausible values, T-dependence of $σ_{\rm el}$ gets reversed, {\em i.e.} it now decreases with T, effect of collision integral gets因此,以$κ$等涂抹。因此,Knudsen数量比一个数字要小得多,这意味着该系统保持平衡。这些发现归因于以下事实:在强B集中热QCD的分散性关系中的集体模式以更大的规模,表现为大型中等内部质量。
Our first aim is to explore the effect of the collision integral with the insurance of instantaneous conservation of particle number on charge and heat transport in a thermal QCD medium. The second aim is to see how the dimensional reduction due to strong magnetic field (B) modulates the transport through the entangled effects, {\em such as} collision-time and occupation probability etc. in collision integral. The final aim is to check how the quasiparticle description through dispersion relation of thermal QCD in strong B, alters the aforesaid conclusions. We observe that modified collision term expedites both transport, which is manifested by large magnitudes of electrical ($σ_{\rm el}$) and thermal ($κ$) conductivities, in comparison to relaxation-collision term. As a corollary, Lorenz number is dominated by the later and Knudsen number is by the former. However, strong B not only flips the dominance of collision term in heat transport, it also causes drastic enhancement of both $σ_{\rm el}$ and $κ$ and reduction in specific heat. As a result, the equilibration factor, Knudsen number becomes much larger than one, which defies physical interpretation. Finally, quasiparticle description in the absence of strong B impedes the transport of charge and heat, resulting in the meagre decrease of conductivities, however, strong B does noticeable observations: conductivities now gets reduced to physically plausible values, T-dependence of $σ_{\rm el}$ gets reversed, {\em i.e.} it now decreases with T, effect of collision integral gets smeared in $κ$ etc. Knudsen number thus becomes much smaller than one, implying that the system be remained in equilibrium. These findings attribute to the fact that the collective modes in the dispersion relation of thermal QCD in strong B sets in much larger scale, manifested by large in-medium masses.